File'/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.1.sdk/SDKSettings.plist'has been modified since the precompiled header'/Users/aaa/Library/Developer/Xcode/DerivedData/poo-dssizedrhgujekdzezmlqxzzkafj/Build/Intermediates/PrecompiledHeaders/poo-Prefix-fojymmgzzeklzbagzyccakgakbkb/poo-Prefix.pch.pch'was built